It's always been slow for me. I can download a 5mb file in 1 second on my desktop, but on the playstation I download a 1mb file in 3-5 seconds. Playstation must get their act together on their speed. They are setting the bar very low, especially considering they want to deliver media and games all in one place. How are you able to do that when you have download speeds dating back in the late 90's.
I know Sony is not really the biggest listener when it come to listening to their customers, but they should. Then maybe they'll get back on the top again.
Sorry for the rant. Just hate it when it's faster to get the game in an actual brick and mortar store than downloading it from the ps3.